Agnirva Space Premier League - Expedition #31091: Radiation Watch: Keeping Astronauts Safe Aboard the ISS

Space is filled with radiation from the sun and cosmic rays from outside our solar system. Unlike Earth, which is protected by a thick atmosphere and magnetic field, the International Space Station (ISS) has only a thin layer of shielding. That’s why 'International Space Station Internal Radiation Monitoring' is crucial for astronaut safety.

On Earth, we rarely think about radiation. But in space, it’s a daily concern. High doses over time can damage DNA, increase cancer risk, and impair cognitive functions. The ISS Internal Radiation Monitoring experiment keeps track of radiation exposure levels inside the station, helping scientists understand how much radiation astronauts receive and how it varies based on solar activity or station location.

This ongoing monitoring uses various types of dosimeters—devices that detect and measure ionizing radiation. Some are fixed in place, while others are wearable, giving personalized readings for crew members.

The data collected is used to refine shielding designs, improve mission planning, and develop protective protocols. This is especially important for future missions beyond low Earth orbit, where radiation levels are even higher.

Understanding space radiation and how it behaves inside the ISS helps protect astronauts during extended missions, including lunar bases and journeys to Mars.

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